Novel injection molding machine feeding structure

Abstract

The utility model provides a novel injection molding machine feeding structure which comprises a hopper installed at the upper end of a top plate of an injection molding machine, and the top plate is provided with a first discharging hole and a second discharging hole; the first discharging hole is communicated with a charging barrel of the injection molding machine, the second discharging hole is communicated with an external collecting frame, and the hopper is mounted on the sliding plate; the top plate is provided with two chutes which are symmetrically arranged at an interval; limiting columns are arranged at the two ends of the sliding groove. According to the position configuration of the limiting column, when the hopper communicates with the first discharging hole or the second discharging hole, the sliding plate abuts against the limiting column; rollers are mounted at the lower ends of the sliding plates and clamped in the sliding grooves. The sliding plate is further in threaded connection with a puller bolt. And the threaded end of the puller bolt faces downwards. Due to the arrangement of the limiting column, when the sliding plate moves, the hopper can accurately communicate with the first discharging hole or the second discharging hole; and the puller bolt is arranged for improving the position stability of the sliding plate, and the position of the hopper is not prone to change during discharging.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a novel feeding structure for injection molding machines. Background Art

[0002] When the injection molding machine is working, materials are added to the inside through the hopper. The injection molding machine is generally equipped with two discharge holes, one of which is connected to the barrel of the injection molding machine, and the other is connected to the outside world to guide the excess raw materials in the hopper. Therefore, a slide plate is installed at the discharge hole position of the injection molding machine, and the hopper is installed on the upper end of the slide plate. By sliding the slide plate, the lower end of the hopper can be connected to different discharge holes.

[0003] There are generally two structures of the skateboard. The first structure is: U-shaped grooves with opposite openings are set on the opposite sides of the skateboard, which are clamped on the top plate of the injection molding machine. This structure has sliding friction when the skateboard slides, and the friction force is large, so the skateboard is difficult to move. The second structure is: the lower end of the skateboard is connected to the top plate of the injection molding machine through a linear guide rail. This structure is not only costly, but also the skateboard is too flexible and difficult to move to the target position accurately, and the position of the skateboard is still unstable after it moves to the target position. Utility Model Content

[0004] In order to solve the technical problems in the background technology, the utility model discloses a novel feeding structure of an injection molding machine.

[0005] The utility model provides a novel injection molding machine feeding structure, comprising a hopper, which is installed on the upper end of a top plate of the injection molding machine, and the top plate is provided with a first feeding hole and a second feeding hole; the first feeding hole is connected to a barrel of the injection molding machine, and the second feeding hole is connected to an external collecting frame, and the hopper is installed on a slide plate;

[0006] The top plate is provided with two chute slots spaced apart and arranged symmetrically;

[0007] Both ends of the chute are provided with limit posts; the position of the limit posts is configured such that when the hopper is connected with the first discharge hole or the second discharge hole, the slide plate abuts against the limit posts;

[0008] A roller is installed at the lower end of the slide plate, and the roller is clamped in the slide groove;

[0009] A tightening bolt is also threadedly connected to the slide plate; the threaded end of the tightening bolt faces downward.

[0010] The setting of the roller enables a rolling connection between the slide plate and the top plate, with low friction, which facilitates the movement of the hopper; the setting of the limit column enables the hopper to accurately connect to the first discharge hole or the second discharge hole when the slide plate moves; the setting of the tightening bolt is used to improve the position stability of the slide plate, and the position of the hopper is not easy to change when unloading.

[0011] The specific installation structure of the roller is as follows: a slider is installed at the lower end of the slide plate, corresponding to the position of the slide groove; a first U-shaped groove with an opening facing downward is provided on the slider; the roller is installed in the first U-shaped groove, and a gap is provided between the roller and the groove wall of the first U-shaped groove.

[0012] Furthermore, the slide block is provided with a second U-shaped groove with its opening facing the hopper horizontally; the second U-shaped groove clamps the side of the top plate and is gap-matched with the upper and lower end surfaces of the top plate. The second U-shaped groove is used for the installation and positioning of the slide block and the top plate, thereby improving the movement stability of the slide block.

[0013] In order to simplify the structure of the slider, a further design is: the slider includes a vertically arranged vertical plate, the upper and lower ends of the vertical plate lead out in the same direction to the horizontally arranged upper plate and lower plate, thereby forming a second U-shaped groove; the first U-shaped groove is arranged at the lower end of the upper plate, and a spacing is provided between the groove wall and the vertical plate.

[0014] Since the slide has a large inertia when it moves, it is easy to collide with the limit column, causing deformation and damage. Based on this, further improvements are: damping blocks are also installed at both ends of the top plate, near the inner side of the slide groove; there is a spacing between the upper plate and the upper end of the top plate; the damping block is elastic, and its installation position is configured as follows: when the hopper is connected to the first discharge hole or the second discharge hole, the lower end of the upper plate is connected to the upper end of the damping block by interference fit. In this way, when the upper plate and the damping block are in contact, the damping block will deform, so that friction is generated between the upper plate and the damping block, causing the slide to slow down, thereby reducing the impact of the slide and the limit column; and the pressure between the upper plate and the damping block can also improve the position stability of the slide.

[0015] In order to achieve a stable fit between the upper plate and the damping block, a further design is: the damping block extends along the length direction of the slide slot; a guide slope is provided on the upper end surface of the damping block, close to the end of the hopper; the guide slope slopes downward from the middle to the end.

[0016] In order to ensure that the excess raw materials can flow stably into the collection frame, a further design is that: a guide tube is also connected to the lower end of the top plate; the guide tube is arranged in an inclined manner, and its upper end is connected to the lower end of the second material discharge hole, and the lower end is inclined toward the outside of the injection molding machine. In this arrangement, when the raw materials flow out of the wire tube, they fall obliquely downward and can be away from the injection molding machine. Therefore, the collection frame does not need to be installed close to the injection molding machine, and the raw materials can fall into the collection frame stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 This is an enlarged view of point A in 1;

[0020] Figure 3 It is a right side view of the utility model, in which the hopper is hidden;

[0021] Figure 4 It is a front view of the utility model, in which the hopper is hidden;

[0022] Figure 5 yes Figure 4 The enlarged view of point B in the middle;

[0023] Figure 6 yes Figure 4 The enlarged view of point B in the middle;

[0024] Figure 7 It is the right side view of the skateboard;

[0025] In the figure: 1. hopper; 2. top plate; 3. first discharge hole; 4. second discharge hole; 5. slide plate; 6. damping block; 7. tightening bolt; 8. guide tube; 9. connecting plate; 10. handle; 21. slide groove; 22. limit column; 51. roller; 52. slider; 53. first U-shaped groove; 54. second U-shaped groove; 61. guide slope; 91. fixing plate; 92. middle plate; 93. mounting plate; 521. vertical plate; 522. upper plate; 523. lower plate. DETAILED DESCRIPTION

[0026] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0027] like Figure 1 As shown, the utility model discloses a novel injection molding machine feeding structure, including a hopper 1, which is installed on the upper end of a top plate 2 of the injection molding machine. The top plate 2 is provided with a first discharge hole 3 and a second discharge hole 4; the first discharge hole 3 is connected to the barrel of the injection molding machine, and the second discharge hole 4 is connected to an external collection frame.

[0028] When the hopper 1 is connected to the second discharge hole 4, if the raw material falls freely, the collection frame needs to be installed close to the injection molding machine to ensure that the raw material falls into the collection frame. However, there is still a possibility that the raw material falls on the upper end of the frame of the collection frame close to the injection molding machine, causing the raw material to jump and fall on the ground outside. Therefore, a guide tube 8 is connected to the lower end of the top plate 2; the guide tube 8 is arranged in an inclined manner, and its upper end is connected to the lower end of the second discharge hole 4, and the lower end is inclined toward the outside of the injection molding machine. With this arrangement, when the raw material flows out of the guide tube 8, it falls obliquely downward and can be away from the injection molding machine. Therefore, the collection frame does not need to be installed close to the injection molding machine, and the raw material can fall into the collection frame stably.

[0029] The hopper 1 is mounted on the slide plate 5, and its lower end is fixedly connected to the slide plate 5 by bolts. A through hole is provided on the slide plate 5, and the outlet of the hopper 1 covers the through hole. When the hopper 1, the through hole and the discharge hole are connected, the raw material can fall from the discharge hole.

[0030] The specific installation structure of the slide plate 5 is as follows: the top plate 2 is provided with two symmetrically arranged slide grooves 21, the slide grooves 21 are located at the edge of the slide plate 5, and the first discharge hole 3 and the second discharge hole 4 are located between the slide grooves 21; the first discharge hole 3 is located at one end of the slide groove 21, and the second discharge hole 4 is located at the other end of the slide groove 21.

[0031] Limiting posts 22 are provided at both ends of the chute 21 ; the positions of the limiting posts 22 are configured such that when the hopper 1 is connected to the first discharge hole 3 or the second discharge hole 4 , the slide plate 5 abuts against the limiting posts 22 .

[0032] A slider 52 is installed at the lower end of the slide plate 5, corresponding to the position of the slide groove 21. Figure 3 As shown, the slider 52 includes a vertical plate 521 arranged vertically, and the upper and lower ends of the vertical plate 521 lead out horizontally arranged upper plate 522 and lower plate 523 in the same direction, thereby forming a second U-shaped groove 54. The second U-shaped groove 54 is clamped to the side of the top plate 2 and is gap-matched with the upper and lower end surfaces of the top plate 2. The second U-shaped groove 54 is used to limit the installation of the slide plate 5 and the top plate 2, thereby improving the movement stability of the slide plate 5. A handle 10 is installed at one end of the top of the slide plate 5 to facilitate workers to push and pull the slide plate 5.

[0033] The lower end of the upper plate 522 is provided with a first U-shaped groove 53 with an opening facing downward, and a gap is provided between the groove wall and the vertical plate 521. The roller 51 is rotated in the first U-shaped groove 53, and a gap is provided between the groove wall of the first U-shaped groove 53.

[0034] Since the slide plate 5 has a large inertia when it moves, it is easy to collide with the limit column 22, resulting in deformation and damage, so the following design is made: damping blocks 6 are also installed at both ends of the top plate 2, near the inner side of the slide groove 21; there is a gap between the upper plate 522 and the upper end of the top plate 2; the damping block 6 is elastic, and its installation position is configured as follows: when the hopper 1 is connected with the first discharge hole 3 or the second discharge hole 4, the lower end of the upper plate 522 is connected with the upper end of the damping block 6 by interference fit. In this way, when the upper plate 522 is in contact with the damping block 6, the damping block 6 will be deformed, so that friction is generated between the upper plate 522 and the damping block 6, so that the slide plate 5 is decelerated, thereby reducing the impact of the slide plate 5 and the limit column 22; and the pressure between the upper plate 522 and the damping block 6 can also improve the position stability of the slide plate 5.

[0035] like Figure 2As shown, the damping block 6 extends along the length direction of the chute 21; a guide slope 61 is provided on the upper end surface of the damping block 6, close to the end of the hopper 1; the guide slope 61 slopes downward from the middle to the end. The guide slope 61 guides the upper plate 522, so that the upper plate 522 and the damping block 6 can fit stably. Moreover, the guide slope 61 also gradually increases the contact area between the upper plate 522 and the damping block 6, and the moving speed of the hopper 1 gradually decreases. It takes longer for the hopper 1 to slow down to stop, and the inertia of the hopper 1 when it stops is smaller and more stable.

[0036] A connecting plate 9 is installed at one end of the skateboard 5. The connecting plate is Z-shaped, and is composed of a fixing plate 91, a middle plate 92 and a mounting plate 93 connected in sequence. The fixing plate 91 is connected to the upper end surface of the skateboard 5 and is fixed by welding or bolt locking. The mounting plate 93 extends to the outside of the skateboard 5, and is provided with a threaded tightening bolt 7, whose threaded end faces downward, and is tightened against the top plate 2 to fix the skateboard 5 and the top plate 2. The setting of the connecting plate 9 can not only keep the tightening bolt 7 away from the skateboard 5, thereby facilitating the workers to tighten or loosen the tightening bolt 7, but also the thickness of the connecting plate 9 can be set to be smaller than the thickness of the skateboard 5, thereby facilitating the matching of the threaded hole processing of the tightening bolt 7.

[0037] The setting of the roller 51 enables a rolling connection between the slide plate 5 and the top plate 2, with low friction, which facilitates the movement of the hopper 1; the setting of the limit column 22 enables the hopper 1 to accurately connect to the first discharge hole 3 or the second discharge hole 4 when the slide plate 5 moves; the setting of the tightening bolt 7 is used to improve the position stability of the slide plate 5, and the position of the hopper 1 is not easy to change when discharging materials.

[0038] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A novel injection molding machine feeding structure, comprising a hopper (1), mounted on the upper end of a top plate (2) of the injection molding machine, wherein the top plate (2) is provided with a first feeding hole (3) and a second feeding hole (4); the first feeding hole (3) is connected to a barrel of the injection molding machine, and the second feeding hole (4) is connected to an external collection frame, characterized in that: The hopper (1) is mounted on a slide plate (5); The top plate (2) is provided with two chute grooves (21) which are spaced apart and symmetrically arranged; Limiting columns (22) are provided at both ends of the slide groove (21); the positions of the limiting columns (22) are configured such that when the hopper (1) is connected to the first discharge hole (3) or the second discharge hole (4), the slide plate (5) abuts against the limiting columns (22); A roller (51) is installed at the lower end of the slide plate (5), and the roller (51) is clamped in the slide groove (21); The slide plate (5) is also threadedly connected with a tightening bolt (7); the threaded end of the tightening bolt (7) faces downward.

2. A novel injection molding machine feeding structure according to claim 1, characterized in that: A sliding block (52) is installed at the lower end of the sliding plate (5) at a position corresponding to the sliding groove (21); The sliding block (52) is provided with a first U-shaped groove (53) with an opening facing downward; The roller (51) is arranged to rotate in the first U-shaped groove (53), and a gap is provided between the roller (51) and the groove wall of the first U-shaped groove (53).

3. A novel injection molding machine feeding structure according to claim 2, characterized in that: The slider (52) is also provided with a second U-shaped groove (54) with its opening horizontally facing the hopper (1); The second U-shaped groove (54) is clamped to the side of the top plate (2) and is clearance-matched with the upper and lower end surfaces of the top plate (2).

4. A novel injection molding machine feeding structure according to claim 3, characterized in that: The sliding block (52) comprises a vertically arranged vertical plate (521), and the upper and lower ends of the vertical plate (521) lead out in the same direction to an upper plate (522) and a lower plate (523) arranged horizontally, thereby forming a second U-shaped groove (54); The first U-shaped groove (53) is arranged at the lower end of the upper plate (522), and a spacing is provided between the groove wall and the vertical plate (521).

5. A novel injection molding machine feeding structure according to claim 4, characterized in that: Damping blocks (6) are also installed at both ends of the top plate (2) and near the inner side of the slide groove (21); A gap is provided between the upper plate (522) and the upper end of the top plate (2); The damping block (6) is elastic, and its installation position is configured such that when the hopper (1) is connected to the first discharge hole (3) or the second discharge hole (4), the lower end of the upper plate (522) is connected to the upper end of the damping block (6) by interference fit.

6. A novel injection molding machine feeding structure according to claim 5, characterized in that: The damping block (6) extends along the length direction of the slide groove (21); A guide slope (61) is provided on the upper end surface of the damping block (6), at one end close to the hopper (1); The guide slope (61) slopes downward from the middle to the end.

7. The novel injection molding machine feeding structure according to claim 1 is characterized in that: The lower end of the top plate (2) is also connected to a guide tube (8); The guide tube (8) is arranged in an inclined manner, with its upper end being connected to the lower end of the second discharge hole (4), and its lower end being inclined toward the outside of the injection molding machine.

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